Which of the following ray diagrams is correct, when \( n_1 \) is the refractive index of the medium and \( n_2 \) is of the lens material (\( n_1>n_2 \))?
\includegraphics[]{1 e phy fw.PNG}
\includegraphics[]{1 e phy fw.PNG}
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The Correct Option is A
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Top Questions on Refractive index
Two parallel plate capacitors of capacitances \( C \) and \( 2C \) are joined with a battery of voltage difference \( V \) as shown in the figure. If the battery is removed and the space between the plates of the capacitor of capacitance \( C \) is completely filled with a material of dielectric constant \( K \), then find out:
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- iii) Total energy stored in the combination.
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